John burke



1 (No Mael.)

, l' J. BURKE.. VALVE. No. 402,228. Patented Apr. :30, 1889.l

N. PETERS Phowumognpnu. whington. u. c.

NirnD STATES PATENT OFFICE.

JOHN BU RKE; OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONEHALE TO PATRICK II. GUNOKEL, SAME PLACE.

VALVE.V

SPECIFICATION forming part of Letters Patent No. 402,228, dated April 30, 1889.

Application filed February 2, 1889. Serial No. 298,429. (No model.)

auxiliary and a main valve, both seating with the fluid-pressure and so arranged that the auxiliary valve can be lifted by slight power, and when lifted the main valve will be caused to open by back-pressure of the fluid.

The invention is illustrated inthe accompanying drawings, in which- Figure l. is a side elevation, partly sectional, of the devices containing my improvements. Fig. 2 is a vertical section of the same on the line a: w of Fig. l; and Figs. 3 and 4 show7 in section and elevation, respectively, details of the devices.

In said drawings, A designates a water-pipe v in vertical position.

a is a coupling for attaching the valve-shell B to the pipe A, and it preferably has an enlarged chamber, ct,to receive the shell, which screws into its base. The valve-shell B may, however, be screwed directly into the end of the service-pipe, a sufficient water-space bei ing provided between thenn The shell B is a short hollow cylinder having a head, b, and its lower end open and interiorly' threaded to receiveaplug, C. In its sides are ports d, and in the plug is a central opening, c, constituting the outlet. The upper surface of the plug is made to serve asa valve-seat, c', and Eis a valve thereon.

F is a piston fitting water-tight in the shell B, and e is a short cylinder connecting the valve E and-piston F and providing a waterchamber, e', intermediate the two-that is, in communication with the ports (Z while t-he valveis seated.

A stem f, of smaller diameter thanA the bore e2 of the. cylinder e, extends from below the plug C through its central opening, c, and

through the opening e2, and carries on its end above the piston a small valve, f', for closingV the outlet opening e2 by seating on a valveseat, e?, formed on the end of the cylinder e or on the piston F. The valve f is preferably of conical form with its apex above, and the shell-head b is provided with a small central opening or inlet-port, b', at the upper surface, and the opening is made flaring, as at b2, beneath, to conform to the shape of the valve-cone f the latter being designed to seat'in turn on the seats e3 and b2 to close the outlet and open the inlet, and vice versa.

The stem f may be operated by means of a float in a tank (not shown) attached to a rod, g, which is secured to a lever, h,fulcrumed at z' between lugs j, depending from the plug C, and having an arm extending into a slot, f2, in the stem. Any other suitable devices may be' employed to reciprocate the stem f. In their closed positions (shown in Fig. 2) the valve E is on its seat c and the valve f on its seat e3, the outlets thus being closed, and the pressure of fluid admitted through the ports b and d ltends to hold both the valves on their respective seats. If thenthe stem F be moved, (by turning the lever 7i to the position shown by dotted lines h,Fig. 1,) to lift the valve f off its seat c3 and carry it upward to close the port b', the fluid in the upper chamber of the shell B will discharge through the openings e2 and c, and the valve E, being thus freed from pressure on its upper surface, will be lifted by the pressure on the piston of fluid admitted through the ports d. Thus communication will be established between the ports d and outlet c, and the ow will continue until the stem is again moved to open the port b and return both valves to their seats, assisted by the pressure of the fluid admitted through the port b.

' I do not wish to limit myself to the exact constructions shown, for obviously manymodilcations can be made to operate in substantially the same manner.

What I claim, and desire to secure by Letters Patent, is-

1. In a valve device, an inclosing-shell arranged within the fluid and provided at the side and :it the inner end with inlet-ports and an intermediate chamber, inlei'fports at both at the other end with au outlet-opening, a sides of the piston, a main outlet controlled valve for the latter, a piston in the shell, a bysaid valve,zt secondary outlet through said hollow connection for the valve and piston, piston and valve, and a stem therein carrying 15 5 and providing an intermediate chamber in availve foralternatelyopening and closing the communication with the side port, and a slidlatter outlet and the inlet in front of the pising stem carrying avalve adapted to Close in ton, substantially as set forth.

turn, said hollow connection and said and JOHN BURKE. inlet-port, substantially as set forth. Vitnesses: 1o 2. In :t Valve device, an inclosing-shell, a J. L. DOBBINS,

connected piston and valve therein prm'filing P. H. GUNCKEL. 

